成功的机会只是在phone interview的头三十秒里

almost useless. Remember skills is only one of the MANY things they want to find out during the interview. Adding a note with past expereinces is most like telling people "I don't know how to write my resume". The selling point of your qualification should have been in the top lines in your resume, not in a thank you email. The old saying still holds here, "The more you hope, the more disappoint you get." Take it easy.